20261054 has 8 divisors (see below), whose sum is σ = 33154488. Its totient is φ = 9209560.

The previous prime is 20261039. The next prime is 20261071. The reversal of 20261054 is 45016202.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 460457 + ... + 460500.

It is an arithmetic number, because the mean of its divisors is an integer number (4144311).

Almost surely, 2^20261054 is an apocalyptic number.

20261054 is a deficient number, since it is larger than the sum of its proper divisors (12893434).

20261054 is a wasteful number, since it uses less digits than its factorization.

20261054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 920970.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 20261054 is about 4501.2280546535. The cubic root of 20261054 is about 272.6176760785.

Adding to 20261054 its reverse (45016202), we get a palindrome (65277256).

The spelling of 20261054 in words is "twenty million, two hundred sixty-one thousand, fifty-four".